1#ifndef _UAPI_LINUX_ERRQUEUE_H
2#define _UAPI_LINUX_ERRQUEUE_H
3
4#include <linux/types.h>
5
6struct sock_extended_err {
7	__u32	ee_errno;
8	__u8	ee_origin;
9	__u8	ee_type;
10	__u8	ee_code;
11	__u8	ee_pad;
12	__u32   ee_info;
13	__u32   ee_data;
14};
15
16#define SO_EE_ORIGIN_NONE	0
17#define SO_EE_ORIGIN_LOCAL	1
18#define SO_EE_ORIGIN_ICMP	2
19#define SO_EE_ORIGIN_ICMP6	3
20#define SO_EE_ORIGIN_TXSTATUS	4
21#define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS
22
23#define SO_EE_OFFENDER(ee)	((struct sockaddr*)((ee)+1))
24
25/**
26 *	struct scm_timestamping - timestamps exposed through cmsg
27 *
28 *	The timestamping interfaces SO_TIMESTAMPING, MSG_TSTAMP_*
29 *	communicate network timestamps by passing this struct in a cmsg with
30 *	recvmsg(). See Documentation/networking/timestamping.txt for details.
31 */
32struct scm_timestamping {
33	struct timespec ts[3];
34};
35
36/* The type of scm_timestamping, passed in sock_extended_err ee_info.
37 * This defines the type of ts[0]. For SCM_TSTAMP_SND only, if ts[0]
38 * is zero, then this is a hardware timestamp and recorded in ts[2].
39 */
40enum {
41	SCM_TSTAMP_SND,		/* driver passed skb to NIC, or HW */
42	SCM_TSTAMP_SCHED,	/* data entered the packet scheduler */
43	SCM_TSTAMP_ACK,		/* data acknowledged by peer */
44};
45
46#endif /* _UAPI_LINUX_ERRQUEUE_H */
47